Looks very promising. I am going to play with it. I do not understand the following part: PRIMARY KEY (DataID, SubTopicID), UNIQUE (SubTopicID, DataID) Is the UNIQUE part not already done by the PRIMARY KEY part?
Looks very promising. I am going to play with it. I do not understand the following part: PRIMARY KEY (DataID, SubTopicID), UNIQUE (SubTopicID, DataID) Is the UNIQUE part not already done by the PRIMARY KEY part?